Put the prey in a zip bag and submerge in hot tap water for 15-20 minutes after they are thawed. I actually thaw all on my feeders in hot water. I let them sit until they are thawed them change the water out for fresh hot water and them serve. When you give the head of the prey a little squeeze it should be warm and the guts need to have no cold spots.

You want hides with only one door that offers your snake a snug fit. Many use these. They are cheap, study, and easy to clean. http://www.reptilebasics.com/hide-boxes